Quick Message

Fault symptom and remedy Of High frequency Induction Heating Machine

No power supply: neither power indicator lamp nor digital-display meter goes on

1. Air switch or power switch has not been turned on

Turn on the switch

2. Control fuse wire is damaged

Check the control fuse wire on rear panel of equipment, replace it with new fuse of 1A

3. Air switch or power switch is damaged

Replace the wire switch with new one

4. No power supply input

Check the external power supply circuit

5.Equipment

fault

Control transformer is damaged

Detect with multimeter

Control mainboard is damaged

Send to the factory for maintenance

2

Fail to start the equipment: after pressing the start button, current display is 000, machine makes quick sound, green lamp on the panel flickers and stops automatically about 2s later;

1. There is short-circuit among coils of induction coil;

Leave gap among the coils of induction coil, or use insulating materials to isolate

2. Mackintosh is used when installing the induction coil

Don’t use mackintosh, if the joint of induction coil has water leakage, please refer to the Notices for Installation in the manual

3. Size of induction coil or coil number is not suitable

Please refer to the “Design of Induction Coil” or consult our company

4. If it is separated machine, connecting wire between main frame and extension is loosened

Check the connecting wire of main frame – extension

5.Equipment

fault

Primary side wire pad of high-frequency transformer becomes aged

Consult our maintenance personnel

Resonant capacitor is broken down, capacitance is reduced

Send to the factory for maintenance

Power device is damaged

Consult our maintenance personnel

Control circuit board is damaged

Send to the factory for maintenance

Potentiometer on panel is damaged, no given signal

Consult our maintenance personnel

Others

Consult our maintenance personnel

3

Succeed in starting, has current display, working indicator lamp flickers normally, beeping sound is normal; but is failed to heat or heats slowly;

There is short-circuit among coils of induction coil;

Leave gap among the coils of induction coil, or use insulating materials to isolate;

Replace it with new induction coil;

4

Alarm, fail to heat, over-heat indicator lamp goes on;

1. Temperature of cooling water is too high or water flow is too small

Change the cooling water or increase the water pressure

2. Temperature switch is damaged

Change the temperature switch

3. Something wrong with mainboard

Send to the factory for maintenance

NO

Symptom

Cause

Remedy

5

Alarm, fail to heat, over-voltage indicator lamp goes on;

1.Input voltage exceeds 420V

Detect the input voltage

2.Setting of over-voltage recognizing device on mainboard is not accurate

Consult our maintenance personnel

3.Equipment fault: mainboard trouble

Send to the factory for maintenance

6

Alarm, fail to heat, under-water indicator lamp goes on;

1.Water-pressure is too low, lower than 0.2MPa

Refer to the Installation & Maintenance Guide

2.Mainboard trouble

Something wrong with the pressure switch

1. Reset the protection value of pressure switch;

2. Replace with new one.

Mainboard trouble

Send to the factory for maintenance

7

After being started, equipment shuts down automatically after giving a sound of beep; or current is very low and fail to increase, temperature of the big green resistor in the equipment increases sharply, even discharges smoke;